html,
body {
  background-color: whitesmoke
}

.layui-fluid {
  margin-top: 15px;
}

.content {
  min-height: 796px;
}

.nav {
  text-align: center;
}

.nav button {
  margin-bottom: 3px;
  width: 100%;
  margin-top: 3px;
  margin-bottom: 3px;
  border-radius: 1px;
}

.nav button:hover {
  background-color: #5FB878;
  border: 1px solid #5FB878;
  color: white;
}

.layui-card-body .layui-btn+.layui-btn {
  margin-left: 0px;
}

.code-show {
  min-height: 454px;
}

.js-show {
  min-height: 200px;
}